baber/WOPTO huggingface dataset:
Patent GB-996889-A (GB)
Title: A sprayer head
IPC: B65D83/14
Filed: 1962-12-18
Abstract: 996,889. Dispensing liquids by gaseous pressure. HAARKOSMETIK und PARFUMERIEN G.m.b.H. Dec. 18, 1962 [Dec. 18, 1961], No. 47810/62. Heading FIR. [Also in Divisions B2 and B8]. A sprayer head for dispensing from a container a metered volume of a pressurized liquid in the form of a spray or as a foam comprises a metering chamber 7 having axially movable therein a plunger 2 which has one end in the form of a hollow stem 1 having a port 5 and the other end slidable against a spring 3 in a cylinder 4 communicating with the metering chamber and also through a bore 9 with the outlet 10 of the sprayer head, the arrangement being such that, when the plunger is moved into the cylinder against the pressure of the spring, the passage of liquid from the cylinder to the bore is prevented and the metering chamber may be filled with liquid through the stem and port 5. The metering chamber 7 is defined by means of a sleeve 12 closed by a cap 11, the sleeve being covered by a casing 17. In operation, when the spraying head is depressed, the plunger 2 enters into the cylinder 4 thereby cutting off communication between the metering chamber and outlet 10 the port 5 then communicating with the metering chamber and the interior of the container. Continued movement downwardly of the head causes the stem to open the normal valve within the container and thereby permit liquid to enter slots 14 in the end of the hollow stem and, via port 5, fill the measuring chamber. Upon release of the head, the spring 3 returns the latter to the position shown and thereby dispenses the measured quantity in the chamber 7. In a modification for dispensing foam, the end of the plunger entering the cylinder 4 is provided with grooves, the dip tube 8 entering the cylinder being omitted.
Patent GB-1277406-A (GB)
Title: Improvements in or relating to lifting and tipping devices
Inventor: CHOULES MARCEL HENRY
IPC: B65G65/00
Filed: 1968-10-09
Abstract: 1277406 Container tipping apparatus RUSSELL CONSTRUCTIONS Ltd 26 Sept 1969 [9 Oct 1968] 47902/68 Heading B8H Lifting and tipping apparatus comprises chains 34, 35 passing round sprockets 29-32 to which a container cradle 37 is attached for a container to be raised and tipped when a shaft 26 of the sprockets 29, 30 is driven by motor 21 through a chain drive 27. A shaft 33 of the sprockets 31, 32 is vertically adjustable by adjusters 55 to tension the chains which are guided by guides 36 which are adjustable by wedges 36a with bolts 56. The cradle is attached to the chains by fixed arms 53 having bearings 39, 40 pivotally connected to a link of the respective chain and by articulated struts 41 pivoted to another link of the chains and to the cradle 37. The arrangement is such that in the lowered position the struts are inclined downwards and as the container moves around the upper sprockets the linear distance between the first and second link connections decreases, causing the struts to rotate to assist the tipping. Micro switches 43, 44 co-operate with strikers on the chains to control their movement. A central single chain may replace the pair of chains shown and the chains may be inclined from the vertical.
Patent GB-1112450-A (GB)
Title: Purification of organic isocyanates
Inventor: KOBER EHRENFRIED HELMUTH
IPC: C07C263/18
Filed: 1965-11-11
Abstract: In a process for purifying a crude organic isocyanate comprising passing an inert gas through said isocyanate to remove hydrogen chloride and phosgene, distilling, in a first distillation step, the resulting degassed material to remove solvent contained therein and distilling in a second distillation step, the residue of the first distillation step to remove the organic isocyanate from residual impurities, the residue of the first distillation step is heated to a temperature in the range 150 DEG  to 300 DEG  C. prior to said second distillation step, whereby the concentration of the hydrolysable chloride is substantially reduced.  The process may be carried out batchwise or continuosly. In examples, toluene diisocyanate is purified and nitrogen is employed as inert gas.
Patent GB-987721-A (GB)
Title: Improvements in or relating to tape driving apparatus
IPC: G11B15/38
Filed: 1962-12-19
Abstract: 987,721. Feeding record tapes. AMPEX CORPORATION. Dec. 19, 1962 [Jan. 2, 1962], No. 47971/62. Heading G5R. A magnetic tape 18 is threaded, Fig. 1, and driven in either direction (Figs. 2, 3, not shown) past heads 21-24 by air-pressure differentials, apart from the reel drives, past an antifriction support/guide surface 47. The surface may be of PTFE, but is preferably an air-bearing represented by the emergent air at intermediate pressure through a porous material such as "Oilite" (Registered Trade Mark). The upper walls 41, 42, 45, 46 are also made of this material and supplied with air to prevent tapesticking during threading. Hinged members 43 (Fig. 5) and 44, downwardly spring have either set of chambers 74, 75 connected to high pressure, the inclined outlets 49 threading and driving the tape forwards and elevating the members 43, 44 clear of the tape. Reelloading access is provided by doors 31, 32, the region 17 being otherwise sealed. Low pressure is connected to the take-up reel hub, Fig. 6, the slots 102 catching the leading end of the tape on threading, holes 110 taking over when the slots 102 are covered by tape. A mid-position of the switch 86 (Fig. 4, not shown) cuts off high-pressure air from both sets of chambers 74, 75 in the member 43, 44, which spring down to snub the tape. Buffer columns 111, 112, of usual type are energized after threading is completed.
Patent GB-1446067-A (GB)
Title: Process for controlling end-point density of sintered uranium dioxide nuclear fuel bodies and products
IPC: C01G43/025
Filed: 1973-10-17
Abstract: 1446067 Controlling density of sintered UO 2  GENERAL ELECTRIC CO 17 Oct 1973 [17 Oct 1972] 48422/73 Heading C1A The end point density of a sintered UO 2  nuclear fuel body is controlled by forming discrete low density porous regions therein by mixing UO 2  powder having an O and U atomic ratio of 2 to 2À25 and ranging in size up to 10 microns with a UO 2 -precursor having an average agglomerated particle size of 20 microns to 1 mm. said precursor being a solid and having a density lower than that of the UO 2 ; forming the mixture into a green body having a density of 30 to 70% of theoretical, said precursor being used in an amount which results in low density regions in the green body ranging from 5 to 25% by volume; heating the green body to decompose the precursor before reaching the sintering temperature and then sintering the body to produce a sintered body having discrete porous regions with a density lower than that of the surrounding sintered UO 2 , thereby reducing the density of the sintered body by 2-13%, the sintered body having an end point density of 85 to 95% of theoretical. The UO 2 -precursor may be ammonium diuranate, U 3 O 8 , uranyl nitrate, or ion exchange resins containing uranium. A formulae is provided in the Specification to calculate the amount of precursor required to attain the desired reduction in density. Generally for a reduction of 2 to 13%, ammonium diuranate is used in an amount ranging from 1 to 10% and uranyl nitrate in an amount of 0À7 to 5% respectively. The green body is heated in an inert or reducing atmosphere at a rate of 50 to 300 degrees an hour. After decomposition of the precursor and removal of all by product gases the rate of heating may be increased to as high as 800 degrees per hour to sinter the body. The sintered body is then cooled at a rate of between 100‹ and 800‹ C. per hour.
Patent GB-1468279-A (GB)
Title: Containers
IPC: B65D47/08
Filed: 1974-11-08
Abstract: 1468279 Device for container nozzles; portable containers W SCHIEMANN 8 Nov 1974 [10 Nov 1973] 48470/74 Headings B8T and B8D The nozzle 14 of a plastics container 11 designed to withstand impacts is surrounded by a sleeve 29 of harder material, the sleeve having a frusto-conical skirt 32, which is spaced from the container wall 33 by an O-ring 34, and an upper inwardly projecting flange 39, which overlies the container rim and is spaced from the flange 26 of an insert ring 19 by a further 0-ring 43. A cover 53, having a retaining plate 56 secured thereto, is spaced from the sleeve flange 39 by a sealing ring 57 and is held in place by a claw fastener. An air pipe 23 connected to a tube 24 is arranged on the insert ring 19.
Patent GB-1373788-A (GB)
Title: Sizing method and composition for use therein
IPC: D21H17/50
Filed: 1971-10-20
Abstract: 1373788 Sizing paper HERCULES POWDER CO Ltd 16 Oct 1972 [20 Oct 1971] 48856/71 Heading D2B [Also in Division C3] A paper-sizing composition comprises a ketene dimer and a water-soluble dicyandiamide-formaldehyde condensate. An emulsifier, e.g. a cationic starch or epichlorhydrin-modified dicarboxylic acid/polyalkylene polyamine polyamide, may be present. Preferably the composition consists of 1-12% ketene dimer, 1-25% condensate, 1-25% emulsifier and 70-97% water, by weight. In the Examples there is used an aqueous emulsion containing 6wt% of a tetradecyl/hexadecyl ketene dimer with 3% of dimethylaminoethyl potato starch or 10% of diethylene triamine/adipic acid/epichlorhydrin as emulsifier; 80 pbw of this emulsion is mixed with 20 pbw of a commercial 50% solution of a dicyandiamide-formaldehyde condensate or a solution of a dicyandiamide-formaldehydeammonium chloride condensate. In Examples 3 and 6 such a composition is added to e.g. a softwood sulphite pulp containing 14% china clay, to give 0.12% of ketene dimer relative to the fibres in the pulp.
Patent GB-1045579-A (GB)
Title: Process for dyeing polyacrylonitrile textile materials and methine dyestuffs
Inventor: BENNETT GEORGE ARTHUR
IPC: C09B23/14
Filed: 1963-12-11
Abstract: The invention comprises dyestuffs of the formula <FORM:1045579/C4-C5/1> wherein R1 and R2 are lower alkyl or aralkyl, R3 is a cyano-lower alkyl, R4 is a lower alkyl which may be substituted, R5 is H, lower alkyl which may be substituted, cyano or lower carbalkoxy ("lower alkyl" being a 1-4 C alkyl), rings A and B may carry substituents and X is anion provided that the molecule is devoid of -SO3H and -COOH groups, are prepared by condensing a benziminazole of the formula <FORM:1045579/C4-C5/2> with an aldehyde of the formula <FORM:1045579/C4-C5/3> by, for example, heating at 50-100 DEG  C. in methanol or ethanol in the presence of piperidine. A wider class of dyes of the above formula wherein R3 is a lower alkyl which may be substituted, the other meanings being identical, are employed to colour polyacrylonitrile fibres.  Examples are given of dyestuff preparation.ALSO:Polyacrylonitrile textile materials are coloured by applying a dye of the formula:-  <FORM:1045579/D1-D2/1> wherein R1 and R2 are lower alkyl or aralkyl, R3 and R4 are lower alkyl which may be substituted, R5 is H, lower alkyl which may be substituted, cyano or lower carbalkoxy, the lines A and B may carry substituents and x is an anion provided that the dye is deroid of -SO3H and -COOH groups; "lower alkyl" being a 1-4 C alkyl.  Dyeing may be effected from a bath of pH 3-8 at about 100 DEG C. or higher under pressure.  Examples are given.
Patent GB-1332064-A (GB)
Title: Polyethylene-polypropylene block copolymers and their pre paration
IPC: C08F297/08
Filed: 1971-10-21
Abstract: 1332064 Propylene-ethylene block copolymers and preparation KOPPERS CO Inc 21 Oct 1971 [17 Dec 1970] 49066/71 Heading C3P A polypropylene-polyethylene block copolymer is obtained by (a) polymerizing propylene in a liquid diluent and a 3TiCl 3 .AlCl 3 /R n AlX 3-n  catalyst (R is alkyl, X is halogen, n is 2 or 3), and optionally hydrogen, to form a propylene prepolymer reaction mass, (b) removing at least a major portion of the unpolymerized propylene from the said reaction mass, and (c) adding ethylene, hydrogen, and a tetra-alkyltitanate to the said reaction mass whereby the ethylene polymerizes on to the preformed polypropylene to form the block copolymer. Various desirable ranges of properties of the copolymers are set out and particularly stress crack resistance, stiffness values, various Melt Index figures for powder and injection moulded products, impact strength, flow and brittleness temperature. In examples, the catalysts are 3TiCl 3 .AlCl 3 - (C 2 H 5 ) 2 AlCl together with #:(OC 3 H 7 ) 4 .
Patent GB-1331160-A (GB)
Title: Determination of the thickness of a coating
IPC: G01N23/223
Filed: 1971-10-25
Abstract: 1331160 Automatic control of thickness LANDIS & GYR A G 25 Oct 1971 [29 Oct 1970] 49507/71 Heading G3R [Also in division G1] The thickness of a coating 2 on a continuously moving coated material 3 is measured and/or controlled by irradiating the material with radiation from a radio-active source 1, detecting the fluorescent radiation from the coating with an ionization chamber 5, comparing at 6 the chamber output current with a reference current corresponding to the desired coating thickness, and using the amplified differential current to measure and/or control the coating process. In monitoring a Zn coating on Fe, the source is Am 241. The admission aperture of the ionization chamber is chosen so as to suppress the fluorescence radiation from the base material 3. The comparator 6 may be an ohmic resistor. The reference current may be derived from a comparison ionization chamber 7. The device 9 for controlling the coating process may be provided with an indicator calibrated for the thickness of the zinc coating.
Patent GB-1155879-A (GB)
Title: Removing Polymerisation Products In The Selective Hydrogenation Of Acetylene In Mixtures Of Ethylene And Ethane
Inventor: RITTINGER WILHELM
IPC: C07C7/00
Filed: 1966-11-04
Abstract: 1,155,879. Purifying ethylene/ethane mixtures. BADISCHE ANILIN- & SODAFABRIK A.G. 4 Nov., 1966 [5 Nov., 1965; 24 May, 1966], No. 49523/66. Heading C5E. Mixtures of ethylene and ethane, which have been selectively catalytically hydrogenated (e.g. over a Pd catalyst) to remove small amounts of acetylene therefrom, are treated to remove polymerization products formed during the hydrogenation by passage over a layer of coke, silica gel and/or alumina gel. The treatment is preferably conducted under the same pressure as the hydrogenation. Suitable layers of coke Rc are 2-6 metres deep, and the gas mixture is usually passed upwards through the layer, oily polymers being drained continuously or periodically from the bottom of the layer.
Patent GB-1410650-A (GB)
Title: Automated draughting equipment
IPC: B43L13/02
Filed: 1972-10-28
Abstract: 1410650 Setting up data FERRANTI Ltd 25 Oct 1973 [28 Oct 1972] 49795/72 Heading G3N In apparatus for digitizing information on a drawing, a main index point 2 being movable to transmit co-ordinates relative to origin O of points, such as L,M,N of the drawing to a computer COMP, operational commands may be transmitted to the computer by placing an area, identifying a particular command, of a transparent card 5 movable with the index point, above a previously established subsidiary index point T 1  and operating a switch Q, the computer in response deriving the displacement of index point 2 from the point T 1  to identify the particular area, and hence allowing the performance of the command. In the tracing of line LMN, subsidiary index point T 1  is established by moving the cross-wires of index point 2 to the point T 1  and operating switch R, whence the co-ordinates of point T 1  relative to O are stored in the computer. An area of card 5 marked "LINE" is then placed over point T 1 , and switch Q operated, the resulting calculation by the computer of the co-ordinates of the separation between point 2 and area "LINE" preparing the computer for linear interpolation. With point 2 over points L, M, switch P is operated at each point, the positions of each, as registered on counters C x , Cy counted up or down by moirÚ fringe position transducers being gated via G x , Gy to the computer, the latter passing to tape punch, or magnetic tape recorder, or line by line plotting table and/or cathode ray tube TP a digitized linear interpolation from L to M. Areas "ARC", and "TAN" of card 5 are subsequently placed over point T 1 , switch Q being operated for each, whence point 2 is moved to N, the computer thus interpolating an arc tangent to LM between M & N. Cursor 1 may carry potentiometers enabling arc radii to be fed to the computer. Areas on card 5 may command a circle, or symbols to be inserted on a drawing to be produced. A plurality of interchangeable cards 5 each with a different set of instructions may be provided, the particular card in use being identified for the computer by a switch on the cursor 1. Should the drawing be a building plan with positions of electrical fittings marked on it, the computer may calculate the lengths of cable runs joining them.
Patent GB-1493818-A (GB)
Title: Information processor input/output
IPC: G06F3/00
Filed: 1974-11-18
Abstract: 1493818 Data processing XEROX CORP 18 Nov 1974 [26 Dec 1973] 49799/74 Heading G4A The disclosure is identical to that of Specification 1,493,817 but the claims relate to information processing apparatus including three buses 1-3, a control memory 22 and an I/O device coupled to one of the buses 1, 2, there being also means for interrupting addressing of the control memory to access a particular control memory address (I/O routine), for placing an address on one bus 2, data (e.g. from the I/O device) on another bus 1, and output data on the third bus 3. The address placed on the bus 2 may be of an I/O device or of a memory 16, 18, data at the address of the latter being placed on the third bus 3 during the same clock interval as the addressing of the memory takes place. When the address is of the I/O device the control word at the particular address may be used to control an operation on the data supplied by the I/O device. The output data bus 3 may be coupled to supply data to the I/O device.
Patent GB-1459089-A (GB)
Title: Metal amine complexer a coating composition and a printing ink vehicle
IPC: C09D7/00
Filed: 1973-12-03
Abstract: 1459089 Zinc amine complexes UNION CAMP CORP 3 Dec 1973 [4 Dec 1972] 49840/73 Heading C2C A zinc amine complexer contained in an aqueous solution comprises (a) zinc or a zinc compound (e.g. an oxide, salt or soap), (b) 0À9- 6-0 moles per mole of zinc of a polyalkylene polyamine of formula where a is 2 or 3, n is 2-5 and R is H or methyl and (c) 0À1-1À0 moles per mole of zinc of a C 4-18  monocarboxylic acid, a C 4-12  dicarboxylic acid or an aromatic carboxylic acid. The complexer may also include a co-metal which is an alkali or alkaline earth metal.
Patent GB-1291444-A (GB)
Title: A frequency modulation communication system
Inventor: IWASAKI MASAHIRO
IPC: H04B1/68
Filed: 1969-10-13
Abstract: 1291444 Transmission systems TOKYO SHIBAURA ELECTRIC CO Ltd 13 Oct 1969 [11 Oct 1968 (3)] 50110/69 Heading H4R Frequency modulation communication system includes a filter in the speech path before the modulator having a frequency characteristic such as to maximize the rate of information transmission over the particular channel used with the particular signal transmitted. As described the filter has a characteristic given by the expression . where # and Á are constants, respectively 5.17 x 10<SP>3</SP> and 2.78 x 10<SP>3</SP>, # 1 (f) and # 2 (f) are the power spectral density functions respectively of the voiced and unvoiced components, and S 1  is the power of the voiced components, equations for which are given. The receiver is provided with a filter of inverse characteristic following the demodulator. Filters to provide approximations to the required characteristics for the transmitter filters and receiver filter are shown in Figs. 5 and 6 respectively. The filter may be combined with a spectrum inversion by a conventional amplitude modulator and filter, or a spectrum rearrangement can be carried out as described below. Spectrum rearrangement system Fig. 15.- A portion f 0  to f 2  of the speech signal is inverted and transmitted in the region f 1  to f 2 -(f o -f 1 ) and the portion f 1  to f o  transmitted in the range f 2  - (f 0  -f 1 ) to f 2 . The transpositions are effected by modulators and filters as described with reference to Fig. 14 (not shown).
Patent GB-1462448-A (GB)
Title: Face plate for colour pick-up tube
IPC: H01J31/46
Filed: 1974-11-19
Abstract: 1462448 Image pick-up tubes HITACHI Ltd and HITACHI ELECTRONICS Ltd 19 Nov 1974 [3 Dec 1973 2 Aug 1974] 50115/74 Heading HID [Also in Division C1] To avoid the need for erratic evaporative methods in manufacturing the filter-carrying face plate of a colour TV camera tube and to allow the use of photo-etching methods without risk of chemical damage to existing layers while etching others, the known red-blue-green interference stripe filters 2 (e.g. of TiO 2 ) laid down cyclically on glass substrate 7 are covered by a protective glass layer 14: transparent SnO 2  electrodes 3 aligned with stripes 2 are deposited on the other side of layer 14, followed by busbar electrode strips contacting electrodes 3 or insulated from them by a further glass layer 11 as appropriate: photoconductor layer 4 is finally deposited. The multilayer arragement of bus electrodes 9 and insulating glass 11 is made by photo-etching with HNO 3 -HF etchant: glass 11 should therefore be easily etched for which SiO 2  : Al 2 O 3  : B 2 O 3  : BaO 50 : 13 : 17 : 20% w/w is suitable, while for substrate 7 and protective layer 14 a soda glass SiO 2  : B 2 O 3  : Na 2 O 70 : 18 : 12% w/w is resistant to the etchant. Thick layer 14 applied by sputtering may develop discoloration; a thin layer 14 may be formed on an underlayer 14<SP>1</SP> which may be worked flat before resistant layer 14 is applied in order to eliminate irregularities from the unequal thickness of the three colour stripes of filter 2. Layer 14<SP>1</SP> may be SiO 2 , desirable to reduce electrical capacitance, or a glass similar to layer 11. The expansivity of layers 7, 14<SP>1</SP>, 14, 9, 11 should be matched, for adjustment of which the Na 2 O proportion in layer 14 and of BaO in layer 11 and possibly 141 are critical. To match the value for SnO 2  electrodes 9 an expansivity near 4 x 10<SP>-6</SP>/‹ C. is desirable.
Patent GB-1114198-A (GB)
Title: Polymerisation of substituted triazines
IPC: C08G61/12
Filed: 1966-11-09
Abstract: Polymeric perfluoroalkyl-substituted triazines are obtained by condensing compounds of formula <FORM:1114198/C3/1> where n is at least 1, R is a monovalent perfluorohydrocarbon radical, R1 is a divalent perfluoroalkylene radical and X is a bromine or iodine atom, by heating them with mercury at a temperature of at least 150 DEG  C. Minor amounts of compounds of formulae <FORM:1114198/C3/2> <FORM:1114198/C3/3> where R, R1 and X are as above, may be included in the reaction.  In examples, compounds of the first formula above, where R is trifluoromethyl, R1 is difluoromethylene, X is bromine and iodine and n is 1 and 2, are heated with mercury and polymers obtained.ALSO:Polymeric perfluoroalkyl - substituted triazines are obtained by condensing compounds of formula <FORM:1114198/C2/1> where n is at least 1, R is a monovalent perfluorohydrocarbon radical, R1 is a divalent perfluoroalkylene radical and X is a bromine or iodine atom, by heating them with mercury at a temperature of at least 150 DEG  C.  Minor amounts of compounds of formulae <FORM:1114198/C2/2> <FORM:1114198/C2/3> where R, R1 and X are as above, may be included in the reaction.  In an example, 2,4-bis-(bromodifluoromethyl) - 6 - trifluoromethyl-1,3,5-triazine is heated with mercury and the dimer, trimer and tetramer are obtained.  The monotriazine starting materials may be obtained by heating under pressure nitriles of formula NCR1X and NCR, where R, R1 and X are as above, with silver oxide, hydrogen chloride or tetraphenyltin.  Polytriazines of low molecular weight may be obtained by heating monotriazines with copper or zinc in a solvent. In an example, a triazine of formula <FORM:1114198/C2/4> is obtained by heating iododifluoro-acetonitrile and trifluoroacetonitrile with tetraphenyltin.